Version 1
- SpongeBob as Rocko
- Patrick Star as Heffer Wolfe
- Squidward as Ed Bighead [Both have bad tempers]
- Squillvia as Bev Bighead
- Sandy as Sheila [The're Both starts with "S"]
- Pearl as Missy
- Mr Krabs as Filburt
- Harold SquarePants as Rocko's Dad
- Margaret SquarePants as Rocko's Mom
- Herb Star as George Wolfe
- Margie Star as Virginia Wolfe
- Plankton as Flecko
- Larry as Really Really Big Man
- Gary as Spunky
- Squillam as Mr Dupette
- SpongeBob's Grandma as Granny Rocko
Version 2
- SpongeBob as Rocko [Both are protagnists]
- Patrick Star as Heffer Wolfe [Both are idiotic best friends]
- Squidward as Filburt
- Mr Krabs as Mr Smitty
- Squillam as Ed Bighead
- Sandy as Sheila
- Gary as Spunky
- Larry as Really Really Big Man
- Harold SquarePants as Rocko's Dad
- Margaret SquarePants as Rocko's Mom
- Herb Star as George Wolfe
- Margie Star as Virginia Wolfe
- SpongeBob's Grandma as Granny Rocko
- Plankton as Flecko
Version 3
- Patrick Star as Rocko
- Squidward as Heffer Wolfe
- SpongeBob as Ed Bighead
- Sandy as Bev Bighead